6192 results about "Fire - disasters" patented technology

This is a fire suppression delivery system for the delivery of compressed powdered fire suppressant materials to extinguish fires in, but not limited to high rise, commercial, industrial buildings; tunnel structures; offshore structures; oil and gas platforms; marine vessels; and environmental areas. The system and methods employ basic platforms, to the use of advanced methods currently not employed for this purpose, including electronic programming, heat seeking, propulsion, microprocessor discharge; the use of carriers, launching devices; modification of fire fighting aircraft, ground vehicles, and unmanned aircraft or drones.

The invention provides a large-range fire disaster analyzing and early warning system which comprises a fire disaster characteristic database, a video capture module, a temperature collection module, a video quality improvement module, a fire disaster characteristic extraction module, a fire disaster characteristic identification module, a fire disaster management and control trigger rule judgment module and a fire disaster real-time management and control platform, wherein the fire disaster characteristic database comprises a smoke/flame image model; the video capture module is used for capturing digital video images within a large range; the temperature collection module is used for collecting temperature information through a thermal imaging product; the video quality improvement module is used for carrying out quality improvement on the video image; the fire disaster characteristic extraction module is used for carrying out foreground extraction, target matching and target classification on a video sequence; the fire disaster characteristic identification module is used for comparing and identifying a video object with the fire disaster characteristic database according to parameters set by a user; the fire disaster management and control trigger rule judgment module is used for judging whether a rule is broken or not according to the rule preset by the user by combining video characteristics and temperature values, and if so, sending out abnormal information; and the fire disaster real-time management and control platform is used for receiving a video analysis result and issuing a management and control order according to the analysis result.

The invention belongs to the technical field of polling robots, and provides a rail type polling robot. The rail type polling robot comprises a robot body, a master control unit, an energy module, a detection assembly and a wireless communication module. The robot body comprises at least two sections of vehicle units. Each vehicle unit comprises a motion drive module and a pulley set. The motion drive modules drive the pulley sets to roll on a rail. Every two adjacent vehicle units are connected through a flexible joint and can relatively rotate in the horizontal and/or vertical direction. The robot can run on the turning and/or climbing rail. The robot can detect equipment and the environment near the rail in real time and transmit information to a remote control center, a worker can know the detected information in real time, and a control instruction can be sent to the robot. The detection result of the robot is stable, the worker does not need to get to the field for test, and labor is saved. The robot can rapidly arrive at the field when the fire disaster happens and dangerous gas leaks, and field data and information are obtained.

The invention relates to a fire-fighting robot for a transformer substation. The fire-fighting robot comprises a routing-inspection robot, a gas detection device, an infrared temperature measurement device, a fire extinguishing device and a main control computer, wherein the routing-inspection robot is arranged in the transformer substation, a routing-inspection route is painted at the ground of a working space of the routing-inspection robot, and a plurality of radio frequency cards for positioning are mounted at ground key points. The fire-fighting robot has the beneficial effects that the automatic routing inspection can be carried out based on routing-inspection route marks and a navigation device; the gas detection device is utilized for monitoring the characteristic gas concentration of an early-stage fire disaster in a production place of the transformer substation in real time and pre-warning the concentration overrun condition in a grading manner; the infrared temperature measurement device is utilized for collecting infrared temperature images of production devices, and pre-warning over-temperature conditions of the devices in a grading manner and positioning fault points; the fire extinguishing device is utilized for rapidly extinguishing the sudden fire, controlling the fire propagation in an initial stage and earning time for the rescue operation. Therefore, the precaution and the fighting of the early-stage fire disaster are strengthened, and the fire safety situation of the transformer substation is effectively improved.

The invention belongs to the technical field of materials and particularly relates to a self-temperature-limited polyurethane grouting material and a preparation method. The self-temperature-limited polyurethane grouting material is composed of three components, the component A includes isocyanate and prepolymer thereof and accounts for 30-50% of total mass of the grouting material, the component B includes polyether polyol and auxiliaries and accounts for 5-50%, preferably 30-50% of the total mass of the grouting material, and the component C includes self-temperature-limited additive with the boiling point adjustable within 66-130 DEG C and accounts for 5-55% of the total weight of the grouting material. By adding the self-temperature-limited additive into the isocyanate and the polyether polyol, heat storage temperature after the grouting material is solidified is lower than the boiling point of the self-temperature-limited additive, and accordingly, potential hazards of fire breaking due to overhigh storage heat of the grouting material are reduced, and fire disasters during grouting to underground engineering, especially coal mines are avoided.

The invention discloses a fire disaster detection system and a method thereof. The fire disaster detection system at least comprises two changeable cameras as a first camera of colorful or near infrared mode and a second camera of colorful or white-black mode, for obtaining the video images of detected region; an image collection module connected with two changeable cameras for converting and filtering the video images collected by the two changeable cameras into digital images, to obtain time sequence images; a fire disaster recognition module connected with the image collection module for analyzing the time sequence images, to obtain flame, smoke and fire disaster occurrence probability; and an alarm module connected with the fire disaster recognition module for comparing the flame, smoke and fire disaster occurrence probability with a preset threshold value, and emitting alarm message according to the comparison result. The invention can effectively obtain the fire disaster video images under various backlight conditions, to realize early and reliable fire disaster alarm.

An all-day domestic robot comprises a robot body, wherein the head of the top end of the robot body is provided with a camera and can emit light, electromagnetic wave sensors, infrared ray short sensors and CO2 and formaldehyde sensors are arranged in the front of and behind the robot body respectively, a smog sensor, a CO sensor, an infrared ray heat sensor, a dust sensor and a temperature and humidity sensor are arranged on the robot body left and right, and an ultrasonic nebulizer, a dehumidification cooler, an air purifier, a dust collector, a control circuit board, a touch display screen and a turning keyboard are arranged inside the robot body. The all-day domestic robot has the functions of dust collecting, dust removing, sweeping, disinfecting, organic-matter degrading, temperature and humidity sensing and regulating, detecting and cleaning of CO, CO2, formaldehyde and other poisonous gas, particulate matter sensing and removing, lighting, free travelling, action charging, infrared ray sensing, all-dimensional camera shooting, digital storage, language communication and the like, and the all-day domestic robot is controlled through an intelligent microcomputer, can perambulate indoor security and protection 24 hours, can conduct accurate identification, send site video and give an alarm when a fire disaster occurs and external articles invade, and is stable in performance, convenient to operate and high in work efficiency.

The invention relates to a method for identifying and detecting flame of a tunnel fire hazard. The method comprises the following steps: performing a pretreatment of eliminating illumination on an input video stream; performing motion detection on the video stream to obtain a moving pixel; performing color detection on the video stream to obtain a color pixel with flame characteristics; searching communication areas which are formed by all mutually connected pixels according with same characteristics; calculating out the perimeters and the areas of the obtained communication areas to perform shape analysis; and performing area variation analysis on each communication area to finally judge whether a fire hazard happens. The method, based on a fire hazard detection system with image processing, can correctly identify flame information from an image sequence with background noise according to the characteristics of flame images that the color, the shape and glittery characteristic, the position, the area and the brightness of the flame images change over time, thus the method can separate the real flame from a glittery vehicle lighting in a tunnel, greatly reduce the false alarm rate, and achieve the aim of fire hazard monitoring.

The invention discloses a method for detecting fire disaster smog by video on the basis of color saturation and motion mode, which comprises the following steps: firstly, extracting a foreground motion block from a video image acquired by a monitoring camera through a difference method; secondly, detecting the color saturation of the foreground motion block, estimating the direction of the motion block, and calculating the cumulant and the main moving direction of the motion block; and thirdly, calculating the color saturation detection percentage of each region, the average cumulant and the main moving direction ratio to form a characteristic vector, and adopting a Bayesian classifier to judge whether the smog is the fire disaster smog. The detection of the color saturation reflects a rough color distribution of the smog and eliminates a large amount of foreground interfering objects with glowing colors. The color detection in a blocking mode further improves the anti-interference performance of a system. The cumulant shows the characteristic of continuous movement nearby a smoldering point of the smog, and has very good anti-interference performance for a non-reciprocating object. The comprehensive utilization of the color saturation detection percentage, the average cumulant and the main movement ratio can greatly reduce the rate of false alarm for the system.

The invention discloses a water pressure remote monitoring management system of a fire-fighting water supply network, consisting of water pressure monitoring units, a GPRS wireless repeater and a fire-fighting water pressure data management center which are arranged on the fire-fighting water supply network, wherein the water pressure monitoring unit is used for collecting fire-fighting water pressure data; the GPRS wireless repeater is used for receiving water pressure data of a plurality of water pressure monitoring units and transmitting the data to the fire-fighting water pressure data management center. When the fire-fighting water pressure is lower than the rated fire-fighting water pressure, the GPRS wireless repeater adopts the manner of mobile phone alarm to inform the fire-fighting monitoring management staff, and simultaneously transmits water pressure monitoring unit address coding and water pressure value to the fire-fighting water pressure data management center. In the invention, when the fire-fighting water supply network is under the condition of water shortage or no water, the water pressure monitoring unit address coding and the water pressure value are transmitted to the fire-fighting water pressure data management center immediately, thus reminding of inspecting and maintaining the fire-fighting water supply network equipment in time, and avoiding bringinghuge losses to life and property of the masses.

Disclosed in the invention is an RFID/wireless network-based fire escape cloud command system. The system comprises a fire disaster situation detection and alarm system, an RFID tag, an RFID mobile read-write device, a mobile terminal, a central processing module, a cloud platform, and an escape route calculation module. In addition, the invention also discloses a method for utilizing the system to carry out fire escape cloud commanding. According to the invention, the mobile terminal is used as a command terminal; and a cloud calculating technology and an RFID technology are used to combine a fire disaster alarm system, fire alarming, fire situation and personnel positioning, and escape route indication and the like, thereby forming the RFID/wireless network-based fire escape cloud command system and method. When the system and the method are used, rapid and accurate positioning of the fire situation and the personnel can be realized; effective instruction of an escape route for people is realized; the panic in the fire disaster is reduced; the escape probability is increased; the surviving opportunity is increased; the loss is reduced; and convenience is provided for rescuing organization by the fire fighters.

The invention discloses an explosion-proof and fire fighting reconnaissance robot. The robot comprises two parts including a fire fighting robot body and a remote control box, wherein the fire fighting robot body is composed of a box body assembly, an independent suspension shock absorption system, a fire fighting water cannon, a data acquisition multimedia assembly and an auxiliary part; the box body assembly adopts an explosion-proof design and is provided with a sensor, a camera and the fire fighting water cannon, so that the robot can replace fire fighters to enter inflammable and explosive environments and environments with toxic gas to detect and reconnoiter and can also enter accident scenes with rick smoke, fire disasters and the like to carry out fire fighting; the explosion-proof and fire fighting reconnaissance robot has the characteristics of small size, flexibility of walking, far communication distance, long working time and convenience for operation.

Electrical equipment cabinet having convenient movement and heat dissipation functions includes a cabinet body and support legs arranged under the cabinet body, a rotating shaft is arranged on a bottom plate of the cabinet body, the upper end of the rotating shaft is connected with a motor located in the cabinet body at the bottom, the lower end of the rotating shaft is fixedly connected with a first bevel gear, the first bevel gear engages with a second bevel gear, the second bevel gear is fixedly connected with a middle position of a horizontally arranged rotary rod, two ends of the rotary rod are fixedly provided with third bevel gears, the third bevel gears engage with fourth bevel gears, the fourth bevel gears are fixedly arranged on screws, and the top ends of the screws are rotatably connected with the lower end of the cabinet body. The electrical equipment cabinet has the beneficial effects that mutual conversion between a stable state and a moving state of the cabinet body is realized by utilization of transmission of the bevel gears; and through cooling treatment on air, cooling of the inside of the cabinet body is realized, thereby effectively guaranteeing normal work of electrical equipment, and preventing occurrence of a fire disaster.

The invention relates to a track inspection robot system comprising an inspection robot, a firefighting robot, and a center management platform. The inspection robot consists of a first monitoring unit, a second monitoring unit, and a first communication unit; and the first communication unit is respectively connected with the first monitoring unit and the second monitoring unit. The firefighting robot includes a third monitoring unit, a fire extinguishing apparatus and a second communication unit; and the second communication unit is respectively connected with the third monitoring unit and the fire extinguishing apparatus. The inspection robot is connected with the center management platform by the first communication unit; and the firefighting robot is connected with the central management platform by the second communication platform. The center management platform determines whether a fire disaster exists according to gas information and image information based on analyzing and monitoring, so that real-time monitoring by the staff is not required. When a fire source is found, the firefighting robot is controlled to be started in real time to carry out fire extinguishing processing and there is no need to wait for arriving of the related staff at the site, so that the fire can be dealt with timely and the personal safety of the staff can be prevented from being threatened. And the reliability is high.

An early suppression fast response fire protection system includes a sprinkler piping system with at least one sprinkler head assembly, a water supply system, and a check valve in fluid communication with the sprinkler piping system and the water supply system. An antifreeze solution supply system is in fluid communication with the sprinkler piping system, with the check valve isolating the antifreeze solution from the water supply unless a fire condition occurs. A control is provided that is in communication with a flow detector, which detects the pressure of the antifreeze solution in the sprinkler piping system, and a pressure detector, which detects the flow of water through the check valve, and controls the flow of the antifreeze solution to the sprinkler piping system and maintains the pressure of the antifreeze solution in the sprinkler piping system unless the flow detector detects the flow of water through the check valve in which case the control stops the flow of antifreeze solution to the sprinkler piping system to limit the discharge of antifreeze solution from the fire protection system.

The invention relates to a simulation experiment device of a fire disaster on an external wall face of an urban building. The device comprises a simulation wall body, a burning closet, a weighing mechanism, a slope board, a ground track, a thermoelectric couple frame and a thermal radiation flux measurement frame, wherein the simulation wall body is in a vertical framework shape; the burning closet is a square box the bottom of which is connected with a weighing support; the weighing mechanism comprises an electronic scale and a movable support; the thermoelectric couple frame is a rectangle framework, and more than 10 thermoelectric couples are distributed on the thermoelectric couple frame; the thermal radiation flux measurement frame is in a cross shape, and one end of the cross-bar thereof is provided with a thermal radiation probe, and the thermal radiation probe is correspondingly located in the door of the burning closet. In the invention, a set of simulation experiment device for researching fire disaster features on the external wall face of the building and a mechanism that the fire disaster features are influenced by a slope is firstly established, with a safe, flexible, convenient and fast sloping degree regulating system, and the experiment device is provided with a complete measurement system for temperature and thermal radiation intensity.

The invention is a fire monitoring method and device based on all- direction computer vision, mainly making field monitoring by all-direction computer vision sensor, inputting the taken continuous all-direction image into the computer for continuous image processing and analysis, and obtaining a synthetic result by simple fire mode classification, flame area change characteristic judgment, flame shape change characteristic judgment, flame color characteristic judgment, flame flickering rule characteristic judgment, whole flame motion characteristic judgment and fire intensity characteristic judgment, making different processings according to the calculation and synthetic judgment quantized values to reduce false alarm rate of fire. And the invention provides a truly original, quicker, accurater, more reliable multiparameter intelligent fire monitoring method and device.

An embodiment of the invention discloses a double-spectrum forest fire disaster monitoring method and a double-spectrum forest fire disaster monitoring device based on an infrared-visible light image. The double-spectrum forest fire disaster monitoring method comprises the steps of acquiring an infrared image and a visible light image of a current scene; determining a suspected fire point mark area in the infrared image; mapping the suspected fire point mark area to a corresponding position in the visible light image, and obtaining an interested area in the visible light image; verifying an image in the interested area, and determining whether a real fire point exists in the current scene according to a verification result. According to the double-spectrum forest fire disaster monitoring method and the double-spectrum forest fire disaster monitoring device, advantages in infrared image identification and advantages in visible light image identification are combined, and an interference caused by objects which have appearances similar with flame and radiation energy that is different from that of the flame to determination result can be prevented, thereby improving accuracy. Furthermore only the image in the interested area in the visible light image is verified, thereby reducing calculation amount, improving efficiency and ensuring high real-time performance in fire disaster monitoring.

The invention relates to a novel jet aircraft, in particular to a novel vertical-elevating or bevel multilateral-elevating jet aircraft which not only can fly, but also can slide and stop in the sky steadily. The jet aircraft comprises eight parts: a chamber body, an awl-top crisscross parasol wing, a parasol metal support, a jet motor cantilever, a jet motor, a turning axis of a jet motor and an operation device of the turning axis, a hydraulic press and an aircraft tail. The jet aircraft is characterized in that the unique awl-top crisscross parasol wing, four jet motors or four jet turbine ducted fans are provided, wherein, the angles of two motors or tow fans can be changed; the crisscross parasol wing is provided with two balancing wings and a parachute cover of a launching parachute; the launching parachute and the device thereof are arranged in the parachute cover; the bottom of the parachute is fixedly connected with the top end of the parasol metal support; the chamber body with a three-layer structure is also provided, the bottom of which is provided with an elevating foot and an oil tank or a cargo chamber which can be abandoned; the middle part of the chamber body is provided with a spare oil tank and a spare water tank which can be abandoned; under emergency, a double parachute insurance can protect the aircraft and the safe landing of people. The novel jet aircraft can fly all-weather, can be used for civilian and military, can be applied to short, middle and long travels or to the rescue mission in the steep mountain, the cliff and precipice and the flood and fire disaster; moreover, the novel jet aircraft does not have high requirement to the elevating place and the elevating space. Thus, the invention is a novel aircraft with higher safety insurance parameter, more flexible flying and more practical performance in the history.

The invention discloses an intelligent fire-fighting rescue robot, which comprises a vehicle body with a travelling mechanism and a mechanical arm which is hinged with the vehicle body and is provided with a power mechanism, wherein a fixed mount for placing a fire extinguisher is arranged on the top surface of the vehicle body; a temperature sensor and a flame sensor are arranged on the mechanical arm; a barrier shunning module for inducing barriers is arranged on the vehicle body; the travelling mechanism is provided with a driving motor; the driving motor, the temperature sensor, the flame sensor, the barrier shunning module and the power mechanism of the mechanical arm are connected to a master control module; and the master control module is connected with a wireless transceiving module for wireless communication. The intelligent fire-fighting rescue robot can provide multiple operations such as safety control and the like for personnel in fire sites, and can help and even replace fire fighters to enter fire disaster sites and put out a fire or search and rescue in accident sites.

The invention discloses a system and a method for linkage of an electric power tunnel inspection robot and a fire extinguishing system. The method includes: a control platform sends fire disaster signals to the robot and controls fireproof doors to close after detecting a fire disaster in a tunnel; after receiving the signals, the robot moves towards the fire disaster, controls the corresponding fireproof door to open and closes the fireproof door after passing through; the robot verifies the fire disaster and calculates the distance between a fire origin and the robot after reaching a highest-temperature zone; the robot aims at a target in the fire zone and controls nozzles to release fire extinguishing materials to the target; fire extinguishment is finally realized by linkage control of the control platform, the fireproof doors and the robot. The robot is capable of freely passing through fire compartments of the electric power tunnel, once the fire disaster is detected, all of the fireproof doors are closed in a linkage manner, the robot quickly arrives at the fire point to check fire conditions, and firefighting steering engines are directly adopted for aiming at fixed points to extinguish fire. The system and the method for linkage of the electric power tunnel inspection robot and the fire extinguishing system have the advantages of quickness in reaction, information accuracy and flexibility, and accident risks can be greatly reduced to guarantee tunnel environmental safety.

The invention discloses an active infrared video based fire smoke detection method in zero-illumination environment. The method comprises the steps of: acquiring active infrared video image data; extracting foreground images from the infrared video image data by a difference method and carrying out intensity value analysis; extracting and analyzing the speed characteristics of clustering centers in the foreground images; calculating an average value and a variance of the speed characteristics of the clustering centers, and comparing a preset threshold value with the calculated variance of the speed characteristics of the clustering centers to judge whether fire-disaster smoke exists in the monitored and limited zero-illumination space or not; if so, giving alarming signals; and if not, returning to the former step to acquire infrared video image data of next frame continuously. In the method, the influence of the background noise of infrared video images is reduced and the active infrared video smoke detection is realized in the zero-illumination environment.

A tunnel fire early-warning controlling method based on multi-sensor data fusion technology and a system using the tunnel fire early-warning controlling method based on the multi-sensor data fusion technology comprise steps as below: recording of history data of a main sensor group, reading of data of an auxiliary sensor group at a regular time, calculation of a neural network, passing back of a calculation result, execution controlling on site and the like, and the system specially using the tunnel fire early-warning controlling method based on the multi-sensor data fusion technology comprises a site detection device, a data processing device and an alarming displaying device. The tunnel fire early-warning controlling method based on the multi-sensor data fusion technology comprises a dynamic and flexible fire disaster threshold value adjusting method, namely, a method calculating with a neural network to analyze current data of the history data of the main sensor group and the auxiliary sensor group to obtain a fire disaster threshold value of current environment factors, and the original fire disaster threshold value is replaced by the new fire disaster threshold value. The tunnel fire early-warning controlling method based on the multi-sensor data fusion technology can effectively reduce judgment differences of a fire disaster caused by changing of environment of the tunnel, and reduce misstatement rate and missing reporting rate of the funnel fire disaster early-warning system.